Python 2A

Which of these is the best description of a list in Python?

• A list is a collection of data that has an order and can be changed

• A list is a lot of variables

• I have no idea

• A list is a collection of data that cannot hold duplicated data and cannot be changed

Which of these is the correct code for creating a list of names?

• nameList = John, Harry, Jesse, John, Harry, Harry

• nameList = ("John", "Harry", "Jesse", "John", "Harry", "Harry")

• nameList = ["John", "Harry", "Jesse", "John", "Harry", "Harry"]

• nameList = [John, Harry, Jesse, John, Harry, Harry]

What would this out put? print(users[0][0])

• smith

• ben

• sam

• james

The list needs one more name added to the end - "Marina". Which piece of code below would do this?

nameList = ["John", "Harry", "Jesse", "John", "Harry", "Harry"]

• nameList.append(Marina)

• append(nameList,"Marina")

• nameList.append["Marina",7]

• nameList.append("Marina")

• nameList.append("Marina", "Marina", "Marina", "Marina", "Marina", "Marina")

What would this out put? print(users[2][1])

• error

• 16

• brown

• smith

• something

Which of the following methods is used to add an element to the end of a list in Python?

• `insert()`

• `append()`

• `extend()`

• `add()`

What will be the output of the following code snippet? ```python my_list = [1, 2, 3] my_list.insert(1, 4) print(my_list) ```

• `[1, 4, 2, 3]`

• `[1, 2, 3, 4]`

• `[4, 1, 2, 3]`

• `[1, 2, 4, 3]`

Which of the following operations will remove all elements from a set in Python?

• `set.clear()`

• `set.remove()`

• `set.discard()`

• `set.delete()`

What is the result of the following set operation? ```python set1 = {1, 2, 3} set2 = {3, 4, 5} result = set1.union(set2) ```

• `{1, 2, 3, 4, 5}`

• `{3}`

• `{1, 2, 3}`

• `{4, 5}`

Which of the following data types is immutable in Python?

• List

• Set

• Tuple

• Dictionary